在authlib中请求带有POST和json主体的oAuth令牌是可能的吗？

from authlib.integrations.requests_client import OAuth2Session

client_id = 'your_client_id'
client_secret = 'your_client_secret'
authorization_endpoint = 'https://example.com/oauth/authorize'
token_endpoint = 'https://example.com/oauth/token'

session = OAuth2Session(client_id, client_secret, authorization_endpoint, token_endpoint)

import json

data = {
    'username': 'your_username',
    'password': 'your_password'
}

json_data = json.dumps(data)

url = 'https://example.com/api/token'

response = session.post(url, data=json_data, headers={'Content-Type': 'application/json'})

if response.status_code == 200:
    token = response.json()
    access_token = token['access_token']
    # 其他操作...
else:
    # 处理错误...